CY7C4255V-15ASXC Cypress Semiconductor Corp, CY7C4255V-15ASXC Datasheet - Page 14

• Manufacturer Part Number: CY7C4255V-15ASXC
• Description: CY7C4255V-15ASXC
• Manufacturer: Cypress Semiconductor Corp
• Series: CY7Cr

Specifications of CY7C4255V-15ASXC

• Function: Synchronous
• Memory Size: 144K (8K x 18)
• Data Rate: 100MHz
• Access Time: 10ns
• Voltage - Supply: 3.3V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Switching Waveforms
Notes
Document Number: 38-06012 Rev. *D
19. The clocks (RCLK, WCLK) can be free-running during reset.
20. After reset, the outputs are LOW if OE = 0 and three-state if OE = 1.
21. When t
22. The first word is always available the cycle after EF goes HIGH.
t
CLK
Q
D
REN, WEN,
0
0
WCLK
RCLK
WEN
–D
–Q
+ t
REN
Q
EF,PAE
FF,PAF,
OE
SKEW2
EF
SKEW2
0 –
17
17
RS
Q
HF
LD
17
. The Latency Timing applies only at the Empty Boundary (EF = LOW).
> minimum specification, t
t
ENS
t
DS
Figure 9. First Data Word Latency after Reset with Simultaneous Read and Write
D
0
(FIRSTVALID WRITE)
(continued)
FRL
(maximum) = t
t
SKEW2
t
t
t
RSF
RSF
RSF
t
t
OLZ
RS
t
FRL
CLK
[21]
Figure 8. Reset Timing
+ t
SKEW2
t
D
REF
. When t
1
SKEW2
t
OE
< minimum specification, t
[19]
t
D
t
A
RSR
2
CY7C4255V, CY7C4265V
CY7C4275V, CY7C4285V
FRL
(maximum) = either 2 × t
D
0
t
A
[22]
D
3
OE=0
OE=1
CLK
[20]
+ t
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SKEW2
D
1
D
4
or
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